Reactions of the halogens
2 marks · HardState the physical state and the colour of bromine at room temperature. Give one property of halogens that is the same for chlorine, bromine, and iodine.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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Also accept: Bromine is a liquid and red-brown at room temperature. All halogens are poor conductors of heat and electricity.; Bromine is a liquid, red-brown. All halogens are non-metals.; Bromine is a red-brown liquid and halogens are poor conductors.
Common mistakes: Bromine is a gas.; Halogens are good conductors.
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Marking points
B1 · 1 mark · States the physical state and colour of bromine at room temperature (liquid and red-brown).
B2 · 1 mark · States one property that chlorine, bromine, and iodine all share as halogens (e.g. all are non-metals OR all are poor conductors of heat/electricity).
Worked solution
At room temperature, bromine is a liquid and is red-brown in colour.
One property shared by chlorine, bromine, and iodine is that they are all poor conductors of heat and electricity (they are all non-metals).